Shier, Butler, and Lewis: Hole’s Human Anatomy and Physiology, 10 th ed. Chapter 15: Cardiovascular System Chapter 15: Cardiovascular System I. Introduction A. The cardiovascular system includes ________________________________________ B. Without blood circulation, the tissues lack ___________________________________ ________________________________________________________________________ II. Structure of the Heart A. Size and Location of the Heart 1. An average size of an adult heart is generally ___________________________ 2. The heart is bounded laterally by _________________________ , anteriorly by _______________________, and posteriorly by __________________________ 3. The base of the heart lies beneath ____________________________________ 4. The apex of the heart is at the level of _________________________________ B. Coverings of the Heart 1. The pericardium is ________________________________________________ 2. The fibrous pericardium is __________________________________________ 3. The visceral pericardium is _________________________________________ 4. The parietal pericardium is _________________________________________ 5. The pericardial cavity is ____________________________________________ 6. Serous fluid reduces _______________________________________________ C. Wall of the Heart 1. The three layers of the heart wall are __________________________________ __________________________________________________________________ 2. The epicardium is composed of ______________________________________ __________________________________________________________________ 3. The middle layer is the _____________________________________________ 4. The myocardium is composed of _____________________________________ __________________________________________________________________ 5. The inner layer is the ______________________________________________ 15-1 6. The endocardium consists of ________________________________________ __________________________________________________________________ 7. The endocardium of the heart is continuous with ________________________ __________________________________________________________________ D. Heart Chambers and Valves 1. The two upper chambers of the heart are _______________________________ __________________________________________________________________ 2. The two lower chambers of the heart are _______________________________ __________________________________________________________________ 3. Auricles are _____________________________________________________ 4. The interatrial septum separates______________________________________ 5. The interventricular septum separates _________________________________ 6. An atrioventricular orifice is ________________________________________ 7. An atrioventricular orifice is protected by ______________________________ 8. The atrioventricular sulcus is located _________________________________ __________________________________________________________________ 9. The right atrium receives blood from _________________________________ __________________________________________________________________ 10. The tricuspid valve is located ______________________________________ ___________________________ and functions to ________________________ __________________________________________________________________ 11. Chordae tendinae are __________________________________________ and function to _________________________________________________________ 12. Papillary muscles are located ____________________________________ and contract when ______________________________________________________ 13. The right ventricle receives blood from _______________________________ 14. The right ventricle pumps blood into _________________________________ 15. The pulmonary trunk divides into ___________________________________ 16. Pulmonary arteries deliver blood to __________________________________ 17. The pulmonary valve is located __________________________________ and opens when ________________________________________________________ 15-2 18. Pulmonary veins carry blood from the___________________________ to the __________________________________________________________________ 19. Blood passes from the left atrium into the _____________________________ 20. The mitral valve is located ______________________________________ and functions to ________________________________________________________ 21. The left ventricle pumps blood into __________________________________ 22. The aortic valve is located ______________________________________ and opens when ________________________________________________________ 23. The tricuspid and mitral valves are also called _________________________ because ___________________________________________________________ 24. The pulmonary and aortic valves are also called ________________________ because ___________________________________________________________ E. Skeleton of the Heart 1. The skeleton of the heart is composed of_______________________________ __________________________________________________________________ 2. The skeleton of the heart provides attachments for _______________________ __________________________________________________________________ F. Path of Blood Through the Heart 1. Blood that is _________ in oxygen and _________ in carbon dioxide enter the ___________________ of the heart through venae cavae and the coronary sinus. 2. As the right atrium contracts, blood passes into _________________________ 3. When the right ventricle contracts, blood moves into the __________________ __________________________________________________________________ 4. From the pulmonary arteries blood enters the ___________________________ __________________________________________________________________ 5. The blood loses ____________ in the lungs and picks up _________________ 6. Freshly oxygenated blood returns to the heart through ____________________ __________________________________________________________________ 7. The pulmonary veins deliver blood to the ______________________________ 8. When the left atrium contracts, blood passes into ________________________ 9. When the left ventricle contracts, blood passes into ______________________ 15-3 G. Blood Supply to the Heart 1. The first two branches of the aorta are_________________________________ 2. Coronary arteries supply ___________________________________________ 3. The circumflex artery is located _____________________________________ and supplies ________________________________________________________ 4. The anterior interventricular artery is located ________________________ and supplies ___________________________________________________________ 5. The posterior interventricular artery is located _______________________ and supplies ___________________________________________________________ 6. The marginal artery is located ____________________________________ and supplies ___________________________________________________________ 7. Blood flow in coronary arteries is poorest during ________________________ __________________________________ because ________________________ __________________________________________________________________ 8. Cardiac veins drain _______________________________________________ 9. The coronary sinus is ______________________________________________ III. Heart Actions A. Introduction 1. Atrial systole is __________________________________________________ 2. Ventricular diastole is _____________________________________________ 3. Atrial diastole is __________________________________________________ 4. Ventricular systole is ______________________________________________ 5. When the atria of the heart contract, the ventricles _______________________ 6. When the ventricles of the heart contract, the atria _______________________ B. Cardiac Cycle 1. During a cardiac cycle, the pressure within the heart chambers _____________ __________________________________________________________________ 2. The pressure in the ventricles is low during ____________________________ 3. During diastole, the A-V valves are ___________________________________ 15-4 4. About __________% of the blood flows passively from the atria into ventricles and the remaining blood is pushed into the ventricles when the _______________ __________________________________________________________________ 5. As ventricles contract, the A-V valves ________________________________ 6. When the pressure in the atria is lower than venous pressure, blood flows from ______________________ into _______________________________________ 7. During ventricular systole, ventricular pressure increases and the ___________ ________________________________________________________valves open. 8. As blood flows out of the ventricles, ventricular pressure__________________ 9. The semilunar valves close when ____________________________________ C. Heart Sounds 1. Heart sounds are produced by _______________________________________ __________________________________________________________________ 2. The first heart sound is ____________ and occurs during _________________ when _____________________________________________________________ 3. The second heart sound is ___________ and occurs during ________________ when _____________________________________________________________ 4. A murmur is _____________________________________________________ D. Cardiac Muscle Fibers 1. A functional syncytium is __________________________________________ __________________________________________________________________ 2. Two syncytiums of the heart are _____________________________________ __________________________________________________________________ 3. The atrial syncytium and ventricular syncytium are connected by ___________ __________________________________________________________________ E. Cardiac Conduction System 1. The cardiac conduction system consists of _____________________________ __________________________________________________________________ 2. The S-A node is located _________________________________________ and initiates ___________________________________________________________ 15-5 3. The S-A node is called the pacemaker because __________________________ __________________________________________________________________ 4. As a cardiac impulse travels from the S-A node into the __________________ _____________________, it goes from cell to cell via _____________________ 5. Conducting fibers deliver impulses from the S-A node to the_______________ __________________________________________________________________ 6. The A-V node is located ________________________________________ and provides ___________________________________________________________ 7. Impulses are delayed as they move through the A-V node because __________ __________________________________________________________________ 8. From the A-V node, impulses pass to _________________________________ 9. The A-V bundle is located _______________________________________ and gives rise to ________________________________________________________ 10. Purkinje fibers carry impulses ______________________________________ __________________________________________________________________ 11. The ventricular myocardium contracts as _____________________________ 12. Purkinje fibers are located _________________________________________ __________________________________________________________________ 13. The ventricular walls contract with a twisting motion because _____________ __________________________________________________________________ 14. Contraction of the ventricles begins at the apex of the heart and pushes blood __________________________________________________________________ F. Electrocardiogram 1. An electrocardiogram is ____________________________________________ __________________________________________________________________ 2. An ECG is recorded by ____________________________________________ __________________________________________________________________ 3. A P-wave is produced when ________________________________________ __________________________________________________________________ 4. A QRS-wave is produced when ______________________________________ __________________________________________________________________ 15-6 5. A T-wave is produced when ________________________________________ __________________________________________________________________ 6. Physician’s use ECG patterns to _____________________________________ __________________________________________________________________ G. Regulation of Cardiac Cycle 1. The volume of blood pumped changes to accommodate ___________________ 2. The parasympathetic nerve to the heart is the ______________________ nerve 3. The vagus nerve innervates the ________________________________ nodes. 4. The vagus nerve can alter heart rate by ________________________________ __________________________________________________________________ 5. Sympathetic fibers reach the heart via the ________________________ nerves. 6. The endings of accelerator nerves secrete _________________________ which increases __________________________________________________________ 7. The cardiac control center controls ___________________________________ __________________________________________________________________ 8. Baroreceptors detect_______________________________________________ 9. When baroreceptors in the aorta detect and increase in pressure, they signal the __________________________________________________________________ 10. If blood pressure is too high, the medulla oblongata sends ________________ _________________________ to the heart to ____________________heart rate. 11. If venous blood pressure increases abnormally, ________________ impulses flow to the heart and heart rate and contraction ____________________________ 12. Rising body temperature ________________________________ heart action. 13. The most important ions that influence heart action are __________________ __________________________________________________________________ IV. Blood Vessels A. Introduction 1. Blood vessels form a closed ____________ that carries blood ______________ __________________________________________________________________ 2. Five types of blood vessels are ______________________________________ __________________________________________________________________ 15-7 3. _____________________________ conduct blood away from the heart and to __________________________________________________________________ 4. _________________________ conduct blood from capillaries and to the heart. 5. The capillaries are sites of __________________________________________ B. Arteries and Arterioles 1. Arteries are ______________________________________ that are adapted for __________________________________________________________________ 2. Arteries give rise to _______________________________________________ 3. The three layers of the wall of an artery are ____________________________ __________________________________________________________________ 4. The inner layer of an artery is called _______________________________ and functions to ________________________________________________________ 5. The middle layer of an artery is called______________________________ and is composed of _____________________________________________________ 6. The outer layer is ______________________________________________ and consists of _________________________________________________________ 7. The vasa vasorum of an artery is _____________________________________ 8. The ________________________ nervous system innervates smooth muscle in arteries and arterioles. 9. Vasomotor fibers stimulate ________________________________to contract, _____________________________________________the diameter of the vessel. 10. Vasoconstriction is _______________________________________________ 11. Vasodilation is _______________________________________________ and occurs when _______________________________________________________ 12. Changes in the diameters of arteries and arterioles greatly influence ________ __________________________________________________________________ 13. The wall of a very small arteriole consists of __________________________ __________________________________________________________________ 14. Metarterioles are _____________________________________________ and help regulate _______________________________________________________ 15. Arteriovenous shunts are __________________________________________ 15-8 C. Capillaries 1. Introduction a. The smallest diameter blood vessels are _________________________ b. Capillaries connect __________________________________________ c. The wall of a capillary consists of ______________________________ ____________________________________________________________ 2. Capillary Permeability a. The most permeable capillaries are located _______________________ ____________________________________________________________ b. Protective and tight capillaries are located _______________________ ____________________________________________________________ 3. Capillary Arrangement a. The __________________________ , the denser its capillary networks. b. Tissues richly supplied with capillaries are _______________________ c. Tissues that lack capillaries are ________________________________ ____________________________________________________________ d. During exercise, blood is directed to ____________________________ __________________________ and it bypasses ____________________ ____________________________________________________________ 4. Regulation of Capillary Blood Flow a. Precapillary sphincters are located ___________________________ and their function is _______________________________________________ b. When cells have ___________________________________________ , precapillary sphincters relax and blood flow ________________________ 5. Exchanges in the Capillaries a. The vital function of _________________________________________ ________________________________________ occurs in the capillaries. b. Biochemicals move through capillary walls by ____________________ ____________________________________________________________ c. _________________________ is the most important means of transfer. 15-9 d. Oxygen and nutrients diffuse out of the capillary walls into surrounding cells because _________________________________________________ ____________________________________________________________ e. Carbon dioxide and other wastes diffuse into the capillary blood because ____________________________________________________________ f. Plasma proteins generally remain in the blood because ______________ ____________________________________________________________ g. In filtration, hydrostatic pressure _______________________________ ____________________________________________________________ h. In the capillaries, the force for filtration is provided by _____________ ____________________________________________________________ i. Blood pressure is greater at the _________________end of the capillary. j. Colloid osmotic pressure is _________________________________ and is created by ____________________________ in the blood of capillaries. k. At the arteriolar end of the capillary, ________________ predominates. l. At the venular end of the capillary,__________________ predominates. D. Venules and Veins 1. Venules are ___________________ that continue from _______________ and merge to form ______________________________________________________ 2. The middle layer of the wall of a vein is _______________________________ __________________________________________ compared to that of an artery. 3. The function of valves in veins is ____________________________________ __________________________________________________________________ 4. Veins also function as blood ________________________________________ V. Blood Pressure A. Introduction 1. Blood pressure is _________________________________________________ 2. Blood pressure most commonly refers to ______________________________ B. Arterial Blood Pressure 1. Systolic pressure is _____________________________________________ and is created when _____________________________________________________ 15-10 2. Diastolic pressure is ____________________________________________ and is created when _____________________________________________________ 3. A pulse is _______________________________________________________ 4. Common places to detect a pulse are __________________________________ __________________________________________________________________ C. Factors that Influence Arterial Blood Pressure 1. Heart Action a. Stroke volume is ____________________________________________ b. Cardiac output is ___________________________________________ c. If stroke volume or heart rate increases, cardiac output______________ 2. Blood Volume a. Blood volume equals ________________________________________ ____________________________________________________________ b. Blood pressure is _____________________________ to blood volume. 3. Peripheral Resistance a. Peripheral resistance is _______________________________________ b. If peripheral resistance increases, blood flow __________________ and blood pressure ________________________________________________ c. Dilation of blood vessels, ___________________ peripheral resistance. 4. Viscosity a. Viscosity is ________________________________________________ b. As blood viscosity rises, blood pressure _________________________ c. _________________________________ contribute to blood viscosity. D. Control of Blood Pressure 1. Blood pressure is determined by _____________________________________ 2. Cardiac output depends on __________________________________________ 3. Stroke volume is the difference between _______________________________ __________________________________________________________________ 4. End Diastolic Volume is ___________________________________________ __________________________________________________________________ 5. End Systolic Volume is ____________________________________________ 15-11 __________________________________________________________________ 6. Factors affecting stoke volume and heart rate are ________________________ __________________________________________________________________ 7. Preload is _______________________________________________________ __________________________________________________________________ 8. The greater the EDV, the greater the __________________________________ __________________________________________________________________ 9. Starling’s Law of the Heart is the relationship __________________________ __________________________________________________________________ 10. The more blood that enters the heart, the greater the _____________________ __________________________________________________________________ 11. The less blood that returns from veins to the heart, the less _______________ __________________________________________________________________ 12. Starling’s Law of the Heart ensures __________________________________ __________________________________________________________________ 13. If blood pressure rises, ___________________________________ initiate the _______________________ reflex which __________________ blood pressure. 14. If blood pressure falls, the _________________________ reflex occurs which increases __________________, which increases ____________________ , which _____________________________________________________ blood pressure. 15. Other factors that increase heart rate and blood pressure are ______________ __________________________________________________________________ 16. When arterial blood pressure suddenly increases, baroreceptors signal ______ _________________________, and sympathetic outflow to arterial walls ______ _________________________ which results in __________________________ __________________________________________________________________ 17. Chemicals that influence peripheral resistance are ______________________ __________________________________________________________________ E. Venous Blood Flow 1. Blood pressure ___________________ as the blood moves through the arterial system into ________________________________________________________ 15-12 2. Blood flow through the venous system largely depends on ________________ __________________________________________________________________ 3. The ______________________ of skeletal muscles helps push _____________ ____________________________________________________ toward the heart. 4. During inspiration, the pressure in the thoracic cavity _________________ and the pressure in the abdominal cavity_____________________________________ 5. An increase in abdominal pressure will squeeze blood ____________________ __________________________________________________________________ 6. Venoconstriction is ____________________________________________ and occurs when _______________________________________________________ F. Central Venous Pressure 1. Central venous pressure is __________________________________________ __________________________________________________________________ 2. Central venous pressure is of special interest because_____________________ __________________________________________________________________ 3. Other factors that increase central venous pressure are ____________________ __________________________________________________________________ 4. An increase in central venous pressure can lead to _______________________ __________________________________________________________________ VII. Paths of Circulation A. Introduction 1. The two major pathways of blood vessels are ___________________________ __________________________________________________________________ 2. The pulmonary circuit consists of ____________________________________ __________________________________________________________________ 3. The systemic circuit carries _________________________________________ __________________________________________________________________ B. Pulmonary Circuit 1. Blood enters the pulmonary circuit as it _______________________________ __________________________________________________________________ 15-13 2. The pulmonary trunk divides into ____________________________________ __________________________________________________________________ 3. Within the lungs the pulmonary arteries divide into ______________________ __________________________________________________________________ 4. The lobar branches give rise to ______________________________________ __________________________________________________________________ 5. The blood in the arteries and arterioles of the pulmonary circuit is __________ __________________________________________________________________ 6. Gases are exchanged between _______________________________________ __________________________________________________________________ 7. The arterial pressure in the pulmonary circuit is less than in the systemic circuit because ___________________________________________________________ 8. ________________________________ removes any that gets into the alveoli. 9. Blood entering the venules of the pulmonary circuit is ____________________ __________________________________________________________________ 10. Venules merge to form ____________________________________________ __________________________________________________________________ 11. __________________________________ return blood to the left atrium and this completes ______________________________________________________ C. Systemic Circuit 1. Freshly oxygenated blood moves from the left atrium to __________________ __________________________________________________________________ 2. Contraction of the left ventricle forces ________________________________ __________________________________________________________________ 3. The systemic circuit includes ________________________________________ __________________________________________________________________ VIII. Arterial System A. Introduction 1. The ___________________________ is the largest diameter artery in the body. 15-14 2. The aorta extends ______________________, arches over ________________ ________________________, and descends _____________________________ __________________________________________________________________ B. Principal Branches of the Aorta 1. The ascending aorta is _____________________________________________ 2. An aortic sinus is _________________________________________________ 3. _________________________________________ arise from the aortic sinus. 4. Aortic bodies are _________________________________________________ and contain ________________________________________________________ 5. Three arteries originating from the aortic arch are _______________________ __________________________________________________________________ 6. The brachiocephalic artery supplies___________________________________ __________________________________________________________________ 7. The brachiocephalic divides into _____________________________________ 8. The common carotids supply ________________________________________ 9. The subclavian arteries supply _______________________________________ 10. The descending aorta is located _____________________________________ __________________________________________________________________ 11. The thoracic aorta is ______________________________________________ 12. Branches of the thoracic aorta are ___________________________________ __________________________________________________________________ 13. The abdominal aorta is ____________________________________________ 14. Branches of the abdominal aorta are _________________________________ __________________________________________________________________ 15. The celiac artery gives rise to ______________________________________ __________________ which supply ___________________________________ __________________________________________________________________ 16. Phrenic arteries supply ____________________________________________ 17. The superior mesenteric artery branches to ____________________________ __________________________________________________________________ 18. The suprarenal arteries supply ______________________________________ 15-15 19. The renal arteries supply __________________________________________ 20. The gonadal arteries supply ________________________________________ __________________________________________________________________ 21. The inferior mesenteric artery branches into arteries leading to ____________ __________________________________________________________________ 22. Lumbar arteries supply ___________________________________________ __________________________________________________________________ 23. The middle sacral artery supplies ___________________________________ __________________________________________________________________ 24. The abdominal aorta terminates near ______________________________ and divides into ________________________________________________________ 25. The common iliac arteries supply ___________________________________ __________________________________________________________________ C. Arteries of the Neck, Head, and Brain 1. Branches of _______________________________________________ supply structures within the neck, head, and brain. 2. The main divisions of the subclavian artery to the neck, head, and brain are ___ __________________________________________________________________ 3. The common carotid artery communicates with these regions by ____________ __________________________________________________________________ 4. The vertebral arteries arise from _____________________________________ and supply _________________________________________________________ 5. A basilar artery is formed by ________________________________________ 6. The basilar artery divides into _______________________________________ that supply ________________________________________________________ 7. The cerebral arterial circle is formed by _______________________________ __________________________________________________________________ 8. Functions of the cerebral arterial circle are _____________________________ __________________________________________________________________ 9. Thyrocervical arteries give rise to ____________________________________ __________________________________________________________________ 15-16 10. Costocervical arteries carry blood to _________________________________ __________________________________________________________________ 11. The common carotid arteries ascend _________________________________ _____________________________________ and divide to form ____________ __________________________________________________________________ 12. The external carotid artery gives off branches to________________________ __________________________________________________________________ 13. Main branches of external carotid arteries are __________________________ __________________________________________________________________ 14. The superior thyroid artery supplies _________________________________ 15. The lingual artery supplies _________________________________________ 16. The facial artery supplies __________________________________________ 17. The occipital artery supplies _______________________________________ 18. The posterior auricular artery supplies _______________________________ 19. The external carotid artery terminates by dividing into ___________________ __________________________________________________________________ 20. The maxillary artery supplies_______________________________________ __________________________________________________________________ 21. The temporal artery supplies _______________________________________ __________________________________________________________________ 22. The major branches of the internal carotid artery are ____________________ __________________________________________________________________ 23. The ophthalmic artery supplies _____________________________________ 24. The posterior communicating artery forms ____________________________ 25. The anterior choroids artery supplies _________________________________ __________________________________________________________________ 26. The internal carotid artery terminates by dividing into ___________________ __________________________________________________________________ 27. The middle cerebral artery supplies __________________________________ __________________________________________________________________ 28. The anterior cerebral artery supplies _________________________________ 15-17 __________________________________________________________________ 29. A carotid sinus is _____________________________________ and contains __________________________________________________________________ D. Arteries to the Shoulder and Upper Limb 1. As it passes into the arm, the subclavian artery becomes the _______________ 2. The axillary artery supplies _________________________________________ __________________________________________________________________ 3. The axillary artery becomes the ______________________________________ 4. The brachial artery gives rise to ______________________________________ 5. The branches of the brachial artery supplies ____________________________ __________________________________________________________________ 6. Within the elbow, the brachial artery divides into ________________________ __________________________________________________________________ 7. The branches of the ulnar artery supply________________________________ __________________________________________________________________ 8. The branches of the radial artery supply _______________________________ __________________________________________________________________ 9. Blood supply to the wrist, hands, and fingers come from __________________ __________________________________________________________________ E. Arteries to the Thoracic and Abdominal Walls 1. The internal thoracic artery is a branch of ______________________________ 2. The internal thoracic artery gives off two ________________________ to each __________________________________________________________________ 3. The anterior intercostals arteries supply _______________________________ __________________________________________________________________ 4. The posterior intercostals arteries arise from _________________________ and enter______________________________________________________________ 5. The posterior intercostals arteries supply ______________________________ __________________________________________________________________ 6. Branches of the internal thoracic and external iliac arteries provide blood to___ __________________________________________________________________ 15-18 7. Phrenic and lumbar arteries supply ___________________________________ __________________________________________________________________ F. Arteries to the Pelvis and Lower Limb 1. The abdominal aorta divides to form __________________________________ 2. The common iliac arteries provide blood to ____________________________ __________________________________________________________________ 3. Each common iliac divides into ______________________________________ __________________________________________________________________ 4. The internal iliac artery gives off branches to ___________________________ __________________________________________________________________ 5. Branches of the internal iliac artery are ________________________________ __________________________________________________________________ 6. The iliolumbar arteries supply _______________________________________ 7. Superior and inferior gluteal arteries supply ____________________________ __________________________________________________________________ 8. Internal pudendal arteries supply _____________________________________ __________________________________________________________________ 9. Superior and inferior vesical arteries supply ____________________________ __________________________________________________________________ 10. Middle rectal arteries supply _______________________________________ 11. Uterine arteries supply ____________________________________________ 12. The external iliac artery provides the main blood supply to _______________ __________________________________________________________________ 13. Two branches of the external iliac artery are ___________________________ __________________________________________________________________ 14. The inferior epigastric artery and deep circumflex artery supply ___________ __________________________________________________________________ 15. The external iliac artery becomes the ________________________________ 16. The femoral artery gives off branches to ______________________________ __________________________________________________________________ 15-19 17. Important subdivisions of the femoral artery are ________________________ __________________________________________________________________ 18. Superficial circumflex iliac arteries supply ____________________________ __________________________________________________________________ 19. Superficial epigastric arteries supply _________________________________ 20. Superficial and deep external pudendal arteries supply ___________________ __________________________________________________________________ 21. Deep femoral arteries supply _______________________________________ 22. Deep genicular arteries supply ______________________________________ 23. The popliteal artery is derived from__________________________________ 24. Branches of the popliteal artery supply _______________________________ __________________________________________________________________ 25. The popliteal artery divides into ____________________________________ 26. The anterior tibial artery supplies ___________________________________ __________________________________________________________________ 27. The dorsalis pedis artery is derived from ______________________________ 28. The posterior tibial artery supplies __________________________________ __________________________________________________________________ 29. The posterior tibial artery divides into ________________________________ _____________________________________________________________ which supply ____________________________________________________________ 30. The peroneal artery is the largest branch of the ______________________ and supplies ___________________________________________________________ IX. Venous System A. Characteristics of Venous Pathways 1. The vessels of the venous system begin with ___________________________ __________________________________________________________________ 2. Venous pathways are hard to follow because ___________________________ __________________________________________________________________ 3. The larger veins typically parallel ____________________________________ 15-20 4. The veins from most body parts converge into __________________________ __________________________________________________________________ B. Veins from the Head, Neck, and Brain 1. The external jugular veins drain blood from ____________________________ __________________________________________________________________ 2. The external jugular veins empty into _________________________________ 3. The internal jugular veins arise from __________________________________ __________________________________________________________________ 4. The brachiocephalic veins are formed from ____________________________ __________________________________________________________________ 5. The brachiocephalic veins merges to give rise to ________________________ C. Veins from the Upper Limb and Shoulder 1. A set of ___________________ and _________________ drain the upper limb. 2. The deep veins generally parallel ____________________________________ __________________________________________________________________ 3. The superficial veins connect________________________________________ and also communicate with ___________________________________________ 4. The main vessels of the superficial network are _________________________ __________________________________________________________________ 5. The basilic vein is located __________________________________________ _____________________________ and joins the _________________________ 6. The axillary vein is formed by _______________________________________ 7. The cephalic veins are located _______________________________________ ______________________________ and empties into _____________________ __________________________________________________________________ 8. Beyond the axilla, the axillary vein becomes ___________________________ 9. The median cubital vein is located_________________________________ and is often a site for ____________________________________________________ D. Veins from the Abdominal and Thoracic Walls 1. Tributaries of _______________________________________________ drain the abdominal and thoracic walls. 15-21 2. The azygos vein originates in _____________________________ and ascends __________________________________________________________________ 3. The azygos vein drains_____________________________________________ 4. Tributaries of the azygos vein include _________________________________ __________________________________________________________________ 5. The posterior intercostals veins drain _________________________________ 6. The superior and inferior hemiazygos veins drain ________________________ __________________________________________________________________ 7. The ascending lumbar veins drain ____________________________________ __________________________________________________________________ E. Veins from the Abdominal Viscera 1. Veins carry blood directly to the atria of the heart, except those of __________ __________________________________________________________________ 2. The hepatic portal veins drains ______________________________________ _______________________________________________ and carries blood to the __________________________________________________________________ 3. The hepatic portal system is _________________________________________ 4. Tributaries of the hepatic portal system include _________________________ __________________________________________________________________ 5. The gastric veins drain the __________________________________________ 6. Superior mesenteric veins drain the ___________________________________ 7. Splenic veins drain ________________________________________________ __________________________________________________________________ 8. The blood flowing to the liver in the hepatic portal system is ___________ poor and ___________________________________________________________ rich. 9. The liver _____________________________________________ the nutrients. 10. Kupffer cells are located _______________________________________ and function to _________________________________________________________ 11. Blood leaves the liver through ______________________________________ 12. Hepatic veins empty blood into _____________________________________ 15-22 13. Veins that empty into the inferior vena cava are ________________________ __________________________________________________________________ F. Veins from the Lower Limb and Pelvis 1. Veins that drain the lower limb can be divided into ______________________ __________________________________________________________________ 2. The deep veins of the leg have names that correspond to __________________ __________________________________________________________________ 3. The popliteal vein is formed from ____________________________________ 4. The femoral vein originates from ____________________________________ 5. The external iliac vein originates from ________________________________ 6. The small saphenous vein begins in________________________________ and passes ____________________________________________________________ 7. The small saphenous vein ascends _________________________________ and joins the ___________________________________________________________ 8. The great saphenous vein originates on ________________________________ and ascends ____________________________________________________ and eventually joins the __________________________________________________ 9. The longest vein of the body is ______________________________________ 10. The saphenous veins communicate with ______________________________ __________________________________________________________________ 11. In the pelvic region, vessels leading to __________________________ carry blood away from organs for reproduction, ________________________________ 12. Tributaries that form the internal iliac vein are _________________________ __________________________________________________________________ 13. The common iliac veins are formed from _____________________________ __________________________________________________________________ 14. The common iliac veins merge to form _______________________________ __________________________________________________________________ 15-23 X. Life-Span Changes 1. _____ of men over the age of sixty have at least one narrowed coronary artery. 2. Some degree of __________________ deposition in blood vessels may be part of normal aging. 3. During exercise, __________________________________ decreases with age. 4. __________________________________ may cause enlargement of the heart. 5. The number of _________________ in the heart fall and __________________ __________________________________________________________ increases. 6. With age, heart valves begin to ______________________________________ 7. Systolic blood pressure ____________________________________ with age. 8. The increase in systolic blood pressure is due to _________________________ __________________________________________________________________ 9. Resting heart rate _________________________________________ with age. 10. With age, changes in arteries include ________________________________ __________________________________________________________________ 11. The number of capillaries _________________________________ with age. 12. _________________________ can help maintain a “young” vascular system. 15-24